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Finding the Fourth Proportional to 26,687.71, 40,038.51 and 10,047.88

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Solution

The fourth proportional to 26,687.71, 40,038.51 and 10,047.88 is: 15,074.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,687.71 : 40,038.51 = 10,047.88 : x
  2. Step 2: Convert to fraction form
    26,687.71/40,038.51 = 10,047.88/x
  3. Step 3: Cross multiply
    26,687.71x = 40,038.51 × 10,047.88
  4. Step 4: Simplify right side
    26,687.71x = 402,301,943.67
  5. Step 5: Solve for x
    x = 402,301,943.67/26,687.71
  6. Step 6: Final answer
    x = 15,074.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.